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<p>Understanding factors influencing indoor air quality (IAQ) can help create a more comfortable and safer environment for occupants. Previous studies have utilized environmentally-controlled chambers to examine the effects of cigarette smoking on IAQ. Recently, heated tobacco products (HTPs), that heat rather than combust tobacco during use, have become available. In this study, the indoor air concentrations of the following 56 constituents, as markers of IAQ, were measured during HTP use in an environmentally-controlled chamber; tobacco-specific nitrosamines, carbonyls, volatile organic compounds, hydrogen cyanide, polycyclic aromatic hydrocarbon, phenolics, ammonia, nitrogen oxides, pyridine, quinoline, styrene, polycyclic aromatic amines, mercury, metals, carbon monoxide, carbon dioxide, environmental tobacco smoke markers, propylene glycol, glycerol, suspended particle matters, and total volatile organic compounds. IAQ measurements were taken under two environmental conditions, simulating restaurant and residential spaces. Compared to the control condition (no product use), the air concentration of 6 (of 56) constituents were increased with HTP use in the restaurant condition and 9 (of 56) were increased in the residential condition. For the significantly increased constituents that could be compared to the permissible exposure levels set by public agencies, it was confirmed that their concentrations were below the levels.</p> Graphical abstract <p></p>

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Effect of the Use of a Heated Tobacco Product on Indoor Air Quality in Environmentally-Controlled Chamber

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月9日

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  • Katsunari Fujisawa,
  • Yoshihiro Enomoto,
  • Ryosuke Imai,
  • Haruka Nagata,
  • Tadashi Hirotani,
  • Ryotaro Sakashita,
  • Katsura Ishikawa

摘要

Understanding factors influencing indoor air quality (IAQ) can help create a more comfortable and safer environment for occupants. Previous studies have utilized environmentally-controlled chambers to examine the effects of cigarette smoking on IAQ. Recently, heated tobacco products (HTPs), that heat rather than combust tobacco during use, have become available. In this study, the indoor air concentrations of the following 56 constituents, as markers of IAQ, were measured during HTP use in an environmentally-controlled chamber; tobacco-specific nitrosamines, carbonyls, volatile organic compounds, hydrogen cyanide, polycyclic aromatic hydrocarbon, phenolics, ammonia, nitrogen oxides, pyridine, quinoline, styrene, polycyclic aromatic amines, mercury, metals, carbon monoxide, carbon dioxide, environmental tobacco smoke markers, propylene glycol, glycerol, suspended particle matters, and total volatile organic compounds. IAQ measurements were taken under two environmental conditions, simulating restaurant and residential spaces. Compared to the control condition (no product use), the air concentration of 6 (of 56) constituents were increased with HTP use in the restaurant condition and 9 (of 56) were increased in the residential condition. For the significantly increased constituents that could be compared to the permissible exposure levels set by public agencies, it was confirmed that their concentrations were below the levels.

Graphical abstract